Solderless ground clamp



May 27,1924. w 1,495,493

G. LIPSCHUTZ SOLDERLESS GROUND CLAMP Filed Jan. 11, 1923 [FIZZ/TORPatented May 27, 1924.

U ITED STATES GEORGE LIPSCHUTZ, OF PHILADELPHIA, PENNSYLVANIA.

SOLDERLESS GROUND CLAMP.

Application filed January 11, 1923.

To all whom it may concern:

Be it known that I, Gnonon LrPsoHU'rz, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented new and useful Improvements in a Solder lessGround Clamp, of which the following is a specification.

My invention relates to new and useful improvements in a solderlessground clamp, and has for its primary object to improve the constructionof such devices in order that the ground wire may be securely fastenedto the ground clamp without the use of solder.

Another object of the invention is to provide the flexible band with anut housing which acts as a fulcrum means to cause a portion of theflexible band to be forced snugly into engagement with the conductor towhich it is attached as the parts are tightened.

A further object of the invention is to provide a ground clampconsisting of a flexible band having a plurality of spaced holes wherebythe band may be adjusted about conductor members of different sizes,said band having one end turned back upon itself, said turned back endhaving a nut recessed therein and provided with wire grooves whereby around wire may be held between the body of the band on said turned backend.

lVith these ends in view, this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecifically designated by the claims.

In order that those skilled in the art to which this inventionappertains, may understand how to make and use the same, I will describeits construction in detail, referring by numerals to the accompanyingdrawing forming a part of this application, in which 2-- Fig. 1, is anedge view of my improved ground clamp showing it attached to a conductorhere illustrated as a pipe.

Fig. 2, is a plan view thereof.

Fig. 3, is an enlarged sectional view of the ground clamp removed fromthe conductor and the bolt and nut removed from the ground clamp.

In carrying, out my invntion as here embodied, 2 represents a flexibleband having- Serial No. 612,051.

a series of holes 3 in one end thereof while the other end is turnedback upon itself to form the tail piece 4, said tail piece being soformed as to produce a nut housing 5 having a nut recess 6 in its outerface while in the inner face of said housing are formed the spacedparallel transverse wire grooves 7. Centrally of the nut recess or thenut housing is formed a hole 8 aligning with a hole 9 formed in thatportion of the band body underlying the housing and these holes, areadapted to align with one of the series of holes 3 in the opposite endof the flexible band so as to receive a bolt or screw 10 having threadedconnection with a nut 11 set within the nut recess of the nut housing,said nut being held against rotation by the side walls of said housingas will be obvious. A washer 12 is preferably interposed between thehead of the screw or bolt and the flexible band which should be of suchdimensions so as to force or pinch the flexible band snugly intoengagement with theconductor member 13 such as a pipe, as plainly shownin Figs. 1 and 3.

Prior to tightening the ground clamp upon the conductor the ground wire14 isbent into a U shape as shown in Fig. 2, and inserted between thetail piece 4 and the body of the flexible band underlying it with thestrands of the ground wire lying in the grooves 7. As the screw is thenthreaded into the nut the nut housing will be drawn toward that portionof the body of the flexible band underlying said housing to firmly clampthe ground wire in place and at the same time will draw the 'two ends ofthe flexible band toward each other for clamping it about the conductormember and as this is being done the nut housing will fulcrum upon theflexible band so as to pinch it snugly into engagement with theconductor member.

From the foregoing description it will be seen that I have provided anexceedingly simple and effective ground clamp which will be strong anddurable and when in use the ground wire may be fixed thereto without theuse of solder thereby eliminating one of the most objectionableoperations necessary when installing the ordinary ground clamp.

Of course I do not wish to be limited to the exact details ofconstruction as herein shown as these may be varied within the litlimits of the appended claims Without departing from the spirit of myinvention.

Havm thus fully described my invention, what it c aim as new and usefulis 2- l. Aground clamp consisting of a flexible band adapted to bepassed around a suitable conductor and provided with a series of holesat one end, an integral tail piece overlying the body of the band at theother end, said tail piece'having a nut recess in its outer face and apair of spaced parallel transverse wire grooves in its inner face, andmeans engaging the nut to draw the ends of the flexible band about aconductor and clamp a ground Wire between the tail piece and thatportion which it overlies.

2, As an article 0t manufacture, a ground nceenee clamp consisting oi? eifilexihle hand having a series of holes at one end and having theopposite end turned haclr upon itself to provi e spaces in which thestrands of be ground Wire may be inserted, said turned loaclr portionhaving a pair of transverse grooves to register with the strands of theground wire for positioning the same, and means to draw the ends of theband together about a conductor at the same time drawing the turned backportion toward the underlying hody portion of the hand for clamping aground wire therehetvveen.

In testimony whereof l have hereunto atfixed my signature.

GEURGE LllP-SKCHUTZ,

